将 jasper 报告与 java servlet 结合时出错答案

【问题标题】：Error combine jasper report with java servlet将 jasper 报告与 java servlet 结合时出错
【发布时间】：2022-01-08 00:10:16
【问题描述】：

我在 dwr 中使用 jasperReports 生成报告。我收到这些错误

信息：编译报告表达式类文件时遇到错误： C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:4: 包 net.sf.jasperreports.engine 不存在导入 net.sf.jasperreports.engine.*； ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:5: 包 net.sf.jasperreports.engine.fill 不存在导入 net.sf.jasperreports.engine.fill.*； ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:13: 包 net.sf.jasperreports.engine 不存在导入 net.sf.jasperreports.engine.*； ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:15: 包 net.sf.jasperreports.engine.data 不存在导入 net.sf.jasperreports.engine.data.*； ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:21：找不到符号符号：JREvaluator 类公共类classic_1314606689888_793831扩展了JREvaluator ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:28：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_LOCALE = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:29：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_JASPER_REPORT = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:30：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_VIRTUALIZER = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:31：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_TIME_ZONE = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:32：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_SORT_FIELDS = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:33：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_FILE_RESOLVER = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:34：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_SCRIPTLET = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:35：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_PARAMETERS_MAP = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:36：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_CONNECTION = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:37：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_CLASS_LOADER = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:38：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_DATA_SOURCE = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:39：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_URL_HANDLER_FACTORY = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:40：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_IS_IGNORE_PAGINATION = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:41：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_FORMAT_FACTORY = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:42：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_MAX_COUNT = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:43：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_TEMPLATES = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:44：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 私有 JRFillParameter 参数_REPORT_RESOURCE_BUNDLE = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:45：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 私人 JRFillField field_sach_MaSach = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:46：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 私有 JRFillField field_sach_TenSach = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:47：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 私人 JRFillField field_sach_MaNhaXuatBan = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:48：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 私人 JRFillField field_sach_GiaBan = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:49：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 私人 JRFillField field_sach_SoLuongTon = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:50：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 私人 JRFillField field_sach_MaTheLoai = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:51：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 私有 JRFillVariable 变量_PAGE_NUMBER = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:52：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 私有 JRFillVariable 变量_COLUMN_NUMBER = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:53：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 私有 JRFillVariable 变量_REPORT_COUNT = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_13146 信息：06689888_793831.java:54：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 私有 JRFillVariable 变量_PAGE_COUNT = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:55：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 私有 JRFillVariable 变量_COLUMN_COUNT = null; ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:78：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_LOCALE = (JRFillParameter)pm.get("REPORT_LOCALE"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:79：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_JASPER_REPORT = (JRFillParameter)pm.get("JASPER_REPORT"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:80：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_VIRTUALIZER = (JRFillParameter)pm.get("REPORT_VIRTUALIZER"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:81：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_TIME_ZONE = (JRFillParameter)pm.get("REPORT_TIME_ZONE"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:82：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_SORT_FIELDS = (JRFillParameter)pm.get("SORT_FIELDS"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:83：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_FILE_RESOLVER = (JRFillParameter)pm.get("REPORT_FILE_RESOLVER"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:84：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_SCRIPTLET = (JRFillParameter)pm.get("REPORT_SCRIPTLET"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:85：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_PARAMETERS_MAP = (JRFillParameter)pm.get("REPORT_PARAMETERS_MAP"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:86: 找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_CONNECTION = (JRFillParameter)pm.get("REPORT_CONNECTION"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:87：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_CLASS_LOADER = (JRFillParameter)pm.get("REPORT_CLASS_LOADER"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:88: 找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_DATA_SOURCE = (JRFillParameter)pm.get("REPORT_DATA_SOURCE"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:89：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_URL_HANDLER_FACTORY = (JRFillParameter)pm.get("REPORT_URL_HANDLER_FACTORY"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:90：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 参数_IS_IGNORE_PAGINATION = (JRFillParameter)pm.get("IS_IGNORE_PAGINATION"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:91：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_FORMAT_FACTORY = (JRFillParameter)pm.get("REPORT_FORMAT_FACTORY"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:92：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_MAX_COUNT = (JRFillParameter)pm.get("REPORT_MAX_COUNT"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:93：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_TEMPLATES = (JRFillParameter)pm.get("REPORT_TEMPLATES"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:94：找不到符号符号：类 JRFillParameter 地点：classic_1314606689888_793831 parameter_REPORT_RESOURCE_BUNDLE = (JRFillParameter)pm.get("REPORT_RESOURCE_BUNDLE"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:103：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 field_sach_MaSach = (JRFillField)fm.get("sach_MaSach"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:104：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 field_sach_TenSach = (JRFillField)fm.get("sach_TenSach"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:105：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 field_sach_MaNhaXuatBan = (JRFillField)fm.get("sach_MaNhaXuatBan"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:106：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 field_sach_GiaBan = (JRFillField)fm.get("sach_GiaBan"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:107：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 field_sach_SoLuongTon = (JRFillField)fm.get("sach_SoLuongTon"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:108：找不到符号符号：类 JRFillField 地点：classic_1314606689888_793831 field_sach_MaTheLoai = (JRFillField)fm.get("sach_MaTheLoai"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:117：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 variable_PAGE_NUMBER = (JRFillVariable)vm.get("PAGE_NUMBER"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:118：找不到符号符号：类 JRFillVariable 地点：班级信息：classic_1314606689888_793831 variable_COLUMN_NUMBER = (JRFillVariable)vm.get("COLUMN_NUMBER"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:119：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 variable_REPORT_COUNT = (JRFillVariable)vm.get("REPORT_COUNT"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:120：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 variable_PAGE_COUNT = (JRFillVariable)vm.get("PAGE_COUNT"); ^ C:\Program Files\glassfish-3.1\glassfish\domains\domain1\classic_1314606689888_793831.java:121：找不到符号符号：类 JRFillVariable 地点：classic_1314606689888_793831 variable_COLUMN_COUNT = (JRFillVariable)vm.get("COLUMN_COUNT"); ^ 61 个错误

请帮助我生成报告

【问题讨论】：

您能否确认 jasperreports jar 已打包在您的 WAR 中？报告编译器似乎无法找到正确的包，因为它们不在类路径中。

标签： java jasper-reports

【解决方案1】：

尝试在 glassfish3/glassfish/domains/domain1/lib/ext 下添加 jasperreports*.jar 和任何其他包含报告中引用的类的 jar。重启应用服务器。

问候

【讨论】：

【解决方案2】：

JasperReport 库似乎丢失了。最新版 JasperReports 可以在这里下载http://sourceforge.net/projects/jasperreports/files/jasperreports/JasperReports%204.5.0/

将 jar 文件添加到您的项目并重新部署。

确保您也具有所需的依赖项：http://www.installationwiki.org/JasperReports

【讨论】：

【解决方案3】：

您需要在应用程序的类路径中添加 JDT 库。 (WEB-INF/lib)

jdtcore and jdt-compiler

在撰写本文时，版本 3.1.0 和 3.1.1 分别适用于 jasperreports 4.7.0。

就我现在而言，此错误仅发生在 glassfish 中。在tomcat中不会出现这个问题。

Jasper FAQ: When should I compile my report templates and how?

【讨论】：

【解决方案4】：

我也有同样的错误，但是在使用 Groovy 和 Jasperreports 时。我收到这些错误：

net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file:
/home/avorsterman/dev/prj/groovy/page1_1641570877927_139275.java:18: error: cannot find symbol
public class page1_1641570877927_139275 extends JREvaluator
                                                ^
  symbol: class JREvaluator
/home/avorsterman/dev/prj/groovy/page1_1641570877927_139275.java:25: error: cannot find symbol
    private JRFillVariable variable_PAGE_NUMBER = null;
            ^
  symbol:   class JRFillVariable
  location: class page1_1641570877927_139275
/home/avorsterman/dev/prj/groovy/page1_1641570877927_139275.java:4: error: package net.sf.jasperreports.engine does not exist
import net.sf.jasperreports.engine.*;
^
/home/avorsterman/dev/prj/groovy/page1_1641570877927_139275.java:5: error: package net.sf.jasperreports.engine.fill does not exist
import net.sf.jasperreports.engine.fill.*;
^
/home/avorsterman/dev/prj/groovy/page1_1641570877927_139275.java:64: error: cannot find symbol
        variable_PAGE_NUMBER = (JRFillVariable)vm.get("PAGE_NUMBER");
                                ^
  symbol:   class JRFillVariable
  location: class page1_1641570877927_139275
5 errors

将此依赖项添加到项目后，错误已修复：

<dependency>
  <groupId>org.eclipse.jdt.core.compiler</groupId>
  <artifactId>ecj</artifactId>
  <version>4.6.1</version>
</dependency>

【讨论】：